Google Street View

Google Street View. It is a technology featured within Google Maps and Google Earth that provides interactive panoramas from positions along many streets in the world. The service was launched in 2007 in several U.S. cities and has since expanded to include imagery from across every inhabited continent. It allows users to virtually explore and navigate neighborhoods through 360-degree horizontal and 290-degree vertical panoramic street-level imagery.

History and development

The project was conceived by Larry Page and developed by a team at Google under the code name "Ground Truth". The initial test imagery was collected in 2001 using a van equipped with cameras and a GPS unit, driving around San Francisco. The official public launch occurred in 2007, covering New York City, Miami, Denver, Las Vegas, and San Francisco. Early expansion was rapid, with coverage extending to international locations like France, Japan, and Australia by 2008. A major milestone was the introduction of the specialized Street View "Trekker" backpack system in 2012, enabling the collection of imagery in areas inaccessible to vehicles, such as the Grand Canyon and Venice. Over the years, the fleet has grown to include snowmobiles, tricycles, and even underwater apparatus for capturing coral reefs.

Technology and data collection

The primary data collection vehicles are equipped with a proprietary array of high-resolution cameras, typically mounted on a roof rack, which capture imagery in multiple directions simultaneously. These systems also incorporate laser rangefinders, inertial measurement units, and the Global Positioning System to precisely geotag each image. The raw imagery is processed using sophisticated computer vision and photogrammetric techniques to stitch the photographs into seamless 360-degree panoramas and to blur identifiable elements like license plates and human faces automatically. The data is stored and served from massive data centers operated by Google, leveraging the company's extensive cloud infrastructure.

Coverage and availability

As of recent updates, the service offers extensive coverage of roads and pathways in over one hundred countries and territories. Major metropolitan areas in nations such as the United Kingdom, Germany, Canada, and Brazil are covered in great detail. Notably, coverage is absent or severely limited in countries like Austria and China due to local regulations. In addition to terrestrial streets, special collections allow users to view famous interiors, such as the White House, the Louvre, and the International Space Station, as well as natural landmarks like Mount Everest and the Amazon rainforest. The imagery is accessible via the web interfaces of Google Maps and the dedicated mobile application, and is frequently updated, with major cities often receiving fresh imagery annually.

Features and uses

Beyond basic navigation, the platform supports a wide array of applications. The "Time Travel" feature allows users to view historical imagery from previous captures at a given location. It is extensively used for virtual tourism, enabling explorations of sites like the Colosseum or the Great Wall of China. Urban planners and researchers utilize the imagery for studies on topics ranging from architectural styles to urban greenery. The service is also integrated into various Google products, providing the visual foundation for services like Google Local Guides and enhancing location data for businesses on Google My Business. Furthermore, its API allows developers to embed the imagery into third-party websites and applications.

Privacy and legal issues

The service has faced significant scrutiny and legal challenges regarding privacy since its inception. Early controversies involved the inadvertent collection of payload data from unencrypted Wi-Fi networks by its vehicles, leading to investigations by the Federal Communications Commission and settlements with several U.S. states. There have been numerous instances where individuals or their property were captured in compromising situations, prompting the development of more robust automated blurring tools for faces and other identifiers. In the European Union, the service has been subject to rulings by the Court of Justice of the European Union supporting the "right to be forgotten," requiring Google to blur homes upon request. Various countries, including Switzerland and India, have imposed temporary bans or strict regulations on its operations over national security and privacy concerns.

Category:Google services Category:Street view services Category:2007 software